Network Security

One of my user have optonline account and i have configured his outlook.  He can able to recieve email but can't send out.  I have check with ISP if they are blocking the port and they said no.I have tried telnet... telnet mail.optonline.net 25 ...it...

Hello,This is my first time installing the CSM. I am reading the procedures and guidelines. As the procedure of course is to install the CSM software. After installing the CSM software, I think the next procedure is to add the devices to be managed.....

We have a pair of ASA5510  running 7.2 (4) 30 in Active/Standby Failover mode.We have all interfaces with Primary and Secondary IP Addresses.All Interfaces on both units are up and working.There is a single switch between workstations and ASAs. ASAs ...

Hi,I am facing an issue with remote access vpn.VPN client pool assigned is 192.168.1.1 to 192.168.1.254please refer the attached scenarioWhen i tried to connect using vpn client its connected but the lan networks are not accessible, what might be the...

Hi ...I need some help or sugestions about the following configuration.I was trying to replace an Microsoft ISA Firewall with an ASA 5520.I've attached the schema (ASAredirect.jpg) and the ASA configuration (asa.txt).The ISA server had the outside in...

Hi,I have a 5520 with a basic configuraction. I cannot ping to a Server directly connected to DMZ interface from a PC in inside interface. DMZ interface is UP and from the ASA I can ping this server. The message I see in the ASA isThe adaptive securi...

What are the differences between NAC Appliance and ACS server?Do I need to implement both or not? What do I get with NAC, ACS or if I implement the both. What would be best solution for corporate with 2500 users? Thanks

i am using IPS 4240, from cisco website im trying to update the signature. I first downloaded the latest release S505 but this update I could not installed to IPS then I use S479 which was able to update IPS signature. I think I could not install S50...

We currently have an ASA with 7.2 code.  We would like to turn of the inspect for sunrpc.  I found that we have an access-list configured in the ASA that permits sunrpc traffic that does have hit counts associated with the traffic.  We do not have th...

Hi,i found on the internet how to activate anyconnect feature on my ASA5505..  I'm not sure about the new no nat configuration with ios 8.3.  After i put that line, i'm able to connect..  i received an IP on .50.x subnet..  but i can't talk with our ...

Hi there,I'm attempting to configure DCERPC inspection on an ASA5510 and I'm running into problems.  My goal is to allow connections from a host on a DMZ interface to a host on the inside interface.I first added an ACL entry on the DMZ interface to a...

Hello,   I have my asa logging to a linux box but it won't log acl events.I've done countless acl's in cisco routers, for example with an entry like below I see all the incoming web traffic.access-list 100 permit tcp any gt 1023 host x.x.x.x eq 80 lo...